Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 100 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)XMTR open contracts per strike for Fri, Nov 20.
Open-interest change: building vs unwinding
Needs two observed snapshot days for this expiration; the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 103.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.93
-0.07
55
0.0040
0.03
-0.07
-0.06
0.91
-0.09
60
0.0055
0.04
-0.09
-0.09
0.87
-0.11
65
0.0074
0.05
-0.11
-0.13
0.82
-0.13
70
0.0094
0.06
-0.13
-0.18
0.76
-0.15
75
0.0116
0.08
-0.15
-0.24
0.69
-0.16
80
0.0135
0.09
-0.16
-0.31
0.62
-0.17
85
0.0149
0.09
-0.17
-0.38
0.54
-0.18
90
0.0156
0.10
-0.18
-0.46
0.46
-0.18
95
0.0157
0.10
-0.18
-0.54
0.39
-0.17
100
0.0152
0.09
-0.17
-0.61
0.33
-0.16
105
0.0143
0.09
-0.16
-0.67
0.27
-0.15
110
0.0130
0.08
-0.15
-0.72
0.23
-0.14
115
0.0117
0.07
-0.14
-0.77
0.19
-0.12
120
0.0104
0.07
-0.13
-0.81
0.16
-0.11
125
0.0092
0.06
-0.11
-0.84
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.